Basis of Presentation (Policies)	9 Months Ended
Sep. 30, 2021
Accounting Policies [Abstract]
Fair Value of Financial Instruments	The fair values of cash and cash equivalents, receivables and payables were approximately the same as their presented carrying values because of the short maturities of these instruments. The fair value of long-term debt is provided in Note 8, and the fair values of derivative financial instruments are provided in Note 11.
Net Income (Loss) Attributable to Company Per Share	Companies with unvested participating securities are required to utilize a two-class method for the computation of net income attributable to Company per share. The two-class method requires a portion of net income attributable to Company to be allocated to participating securities, which are unvested awards of share-based payments with non-forfeitable rights to receive dividends or dividend equivalents if declared. Net income (loss) attributable to Company allocated to participating securities was immaterial for each of the three and nine months ended September 30, 2021 and 2020, respectively.
Recently Adopted and Issued Accounting Standards	Recently Adopted Accounting Standards In December 2019, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2019-12, “Simplifying the Accounting for Income Taxes.” This ASU eliminates certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. It also clarifies and simplifies other aspects of accounting for income taxes. The Company adopted ASU 2019-12 for the first quarter of 2021 with no material impact on the company’s financial position, results of operations and cash flows. Recently Issued Accounting Standards In March 2020, the FASB issued ASU 2021-01 and 2020-04, “Reference Rate Reform (Topic 848)” This ASU applies only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The expedients and exceptions provided by the amendments do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. Management is currently assessing the impact of adopting ASU 2020-04 on the company’s financial position, results of operations and cash flows.

Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2021

The fair values of cash and cash equivalents, receivables and payables were approximately the same as their presented carrying values because of the short maturities of these instruments. The fair value of long-term debt is provided in Note 8, and the fair values of derivative financial instruments are provided in Note 11.

Net Income (Loss) Attributable to Company Per Share

Companies with unvested participating securities are required to utilize a two-class method for the computation of net income attributable to Company per share. The two-class method requires a portion of net income attributable to Company to be allocated to participating securities, which are unvested awards of share-based payments with non-forfeitable rights to receive dividends or dividend equivalents if declared. Net income (loss) attributable to Company allocated to participating securities was immaterial for each of the three and nine months ended September 30, 2021 and 2020, respectively.

Recently Adopted and Issued Accounting Standards

Recently Adopted Accounting Standards

In December 2019, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2019-12, “Simplifying the Accounting for Income Taxes.” This ASU eliminates certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. It also clarifies and simplifies other aspects of accounting for income taxes. The Company adopted ASU 2019-12 for the first quarter of 2021 with no material impact on the company’s financial position, results of operations and cash flows.

Recently Issued Accounting Standards

In March 2020, the FASB issued ASU 2021-01 and 2020-04, “Reference Rate Reform (Topic 848)” This ASU applies only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The expedients and exceptions provided by the amendments do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. Management is currently assessing the impact of adopting ASU 2020-04 on the company’s financial position, results of operations and cash flows.